| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 8 | |
| #2 | United States | 8 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Optics | |
| #3 | Machines | |
| #4 | Packaging and shipping | |
| #5 | Machine tools | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Special furniture | |
| #3 | Photosensitive materials | |
| #4 | Cameras | |
| #5 | Containers for goods storage | |
| #6 | Chairs and beds | |
| #7 | Venting or aerating devices | |
| #8 | Presses | |
| #9 | Office furniture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mccowan David A | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US3180288A | Knock-down stand | |
| US2851064A | Oil display rack and utility cabinet | |
| US2652222A | Collapsible valve for dispensing apparatus and the like | |
| US2191488A | Displaying draining, and crushing apparatus for tin cans and the like | |
| US1996479A | Chair seat | |
| US1948041A | Bottle case | |
| US1862190A | Automatic photographing machine | |
| US1757130A | Photographic disk | |
| CA573832A | Combined oil display rack and utility cabinet | |
| CA218600A | Vending machine | |
| CA753110A | Knock-down stand | |
| CA431587A | Floating structure and propelling means | |
| CA284703A | Photographic disc | |
| CA501787A | Display stands | |
| CA317578A | Frame device | |
| CA289763A | Photographing machine |